Carbureter.



APPLICA E. P. LAMB. CARBURETER. TloN min 050.11. 1914. RENEWED Aue. 10.1911.

Patented Feb. 26, 1918.

r 2 SHEETS-SHEET I.

e2 M ef Xe 2 d r 4 e F E. P. LAMB.

` FARBURETEH.

APPLICATION FILED DEC. I7. 1.914. RENEWED AUG. l0, 1917.

I Patented Feb. 26, 1918.

2 SHEETS-SHEET 2.

MELDEN 1P. LAMB, 0F CIMDEN', MAINE, ASSIGNOR OIF ELEVEN-TWENTIETHS T0 JOHN i BIRD, 01E CAMDJEN, MAINE.

URBURETJER.

remesa.

Specification of Letters Patent.

Patented Feb. 2d, 119118..

dppucation filed IDecember 17, 1914, Serial No. 877,753. Renewed August 10, 1917. Serial No. 185,631.

such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to carbureters and has for an object to provide a carbureter of improved type having improved means for starting action with gasolene or similar i light hydrocarbon and continuing the action with kerosene or other similar heavier hydrocarbon.

A further object of the invention is to provide a device in general resembling the disclosure in pending application Serial No. 840,305, filed May 22nd, 1914, but involving an improved form of atomizing valve.

A further, object of the invention is to provide in a carbureter improved means for controlling the introduction and passage of the various hydrocarbons mentioned.

A further object of the invention is to provide improved means for automatically regulating the supply of fuel to correspond with the volume of air introduced.

A further object of the invention is to provide manual. control for varying the relation automatically maintained between the air and fuel inlet.

`With these and other objects in view the invention comprises certain novel constructions, combinations and arrangement of parts as will be hereinafter more fully described and claimed.

ln the drawings:

Figurevl is a sectional view through the carbureter. Fig. 2 is a view of the carbureter in side elevation, the side indicated by arrow 2 at Fig. 1.

Fig. 3 is a view of the carbureter in side` elevation taken at right angles to the view at Fig. 2 as indicated by arrow 3 at such figure and also showing arrow 2 the position of Fig. 2 relative to Fig. 3.

Fig. 4 is a top plan view of the carbureter showing arrows 2 and 3 indicating the positions of Figs. 2 and 3 respectively. also showing line 1--1 the position of Fig. 1 above the line a b and the line 1-1 showing the position of the section at Fig. 1 below the line a b.

Fig. 5 is a sectional view through the valve structure controlling the introduction of fuel taken on line 5 5 of Figs. 1, 3 and 4.'

Fig. 6 is a view of the atomizing valve, one-half being shown in plan and the other half being shown in section.

Fig. 7 is a View in side elevation of the toy pipe automatically governing the relation of fuel and air.

Like characters reference designate corresponding parts throughout the several views.

The improved carbureter which forms the subject-matter of this application resembles the carbureter disclosed in co-pending application 840,305. as above noted, in that a thin metal conical diaphragm 10 is employed providing aspace 11 for a thin film of hydrocarbon which passes from the chamber 12 through the opening 13 into said space and there spreads'out into the thin film to be acted upon by the heat introduced through the passage 14 deflected upwardly by the partition 15 into engagement with the diaphragm and thereby being dedected downwardly to pass out of the passage 16 as described more fully in said co-pending application. A. scraper 17 is also employed in the form of a thin narrow strip of metal mounted intermediate its ends upon the spindle 18 which extends outwardly through the housing of the carbureter and is provided upon the exterior with a crank arm 19 so that such scraper may be rotated upon the spindle 18 as an axis and the wings of the strip engaging against the under or inner surface of the diaphragm 10 to remove all carbon deposit or other extraneous matter appearing thereon. llt is intended to employ this heating arrangement as disclosed in said co-pending application and the use of heavier hydrocarbons as for instance kerosene which are heated by the heating fluid, as for instance the waste! gases from the motor to gasify such hydrocarbon or to raise to such temperature that when it meets with air it gasifies and mixes with the air as is the case with lighter hydrocarbons. J ust roe - space by the heat or whether it is simply.

whether the hydrocarbon is gasificd in this raised to` such a temperature that when mixed with air it gasifies cannot be definitely stated.

lVhatever the action in regard to the action of the heat upon the fuel such fuel so heated passes upwardly through the passage which is the opening in the pire 21 shown more particularly at Fig. 7. This pipe 21 is `provided With a series of small openings spirallv arranged as shown at 22 with a needle valve 23 inserted within such pipe and adjustable therein in any approved manner as by the employment of the screw-threads 24. This needle valve extends upwardly through the housing and is provided upon the exterior with a knurled head 25 by which the How of fuel around such needle vvalve may be properlyT and manually adjusted.

Surrounding the pipe 21 is a sleeve 26 carrying the atomizing valve 27 which in general principles is similar to the atomizing valve disclosed in the said copending application 840,305 in that there are a plurality of radial ducts 27 leading outwardly from a central annular chamber 28 which embraces the pipe 21, such chamber existing only below the inner ends of the radial passages and not above so that as the valve 27 moves upwardly and downwardly upon the pipe 21 more or less of the openings 22 communicate with the radial chamber 28 and therefore with the radial passages 27. As the fuel is introduced through the openings 22 it is obvious that more or less of the fuel will'be introduced into the annular chamber depending upon the positions of the atomizing valve 27, the higher the valve 1s raised the more of the openings being uncovered so that more of the fuel passes into the annular chamber and ltherefore outas found Wardly through the radial passages. The atomizing valve 27 is held normallv to seat by a spring 29 which is inclosed within the sectlons 30 and 31 of a telescoping shell, the latter being controlled by a manual lever 32 so that the tension of the spring 29 upon the atomlzing valve 27 may be manually varied expedient.

About the atomizing valve 27 an annular serles of openings 33 are provided tapered from both sides as indicated more particularly at Fig. 1 transecting some of the radial passages 27. shown at Fig. 6-as transecting alternate passages although it is to be understood. that the number and relation of such passages transected is immaterial to the invention. Intermediate the openings 33 the periphery of the atomizing valve 27 is provided with grooves 34 formed in the beveled under side of such periphery producing thereby Openings between the periphery `of the valve and its seat register ing with the external end of certain of the passages 27 so that at all times even when the atomizing valve 27 is seated as shown in full lines at Figpl there are openings through the tapered holes 33 and through the grooves 34 for the passage of air directed and restricted to pass drectly over theA radial passages. B v this means even when there is a verv small quantity of air passing through the carbureter the opening is so restricted that it does not pass through the entire peripheral space surrounding the atomizing valve 27 but is localized to pass directly over the extremities of the feed passages 28 so that even this small amount of air will be highly charged with the hydrocarbon gases. It will be noted. especially with Fig. 1 that when the atomizing valve 27 is on its seat only the lowermost one of the openings 22 is in communifation with the annular chamber 23 and therefore with the radial passages 27 so that only the minimum of fuel is fed to the atomizing valve when the valve is on its seat. As the valve is raised by the pressure of air1 below through the passage 35 the valve is raised admitting fuel to correspond with such air volume.y The air is intoduced in a thin film surrounding the gas inlet passage. as indicated at 36 and is further heated by engagement with the walls 0f the heat chamber.

The air after passing by the atomizing valve 27 and taking'up the hydrocarbon vapors passes upwardlv into the mixing charnber 36 and outwardlv through the passage 37 to the motor, such passage being con-l trolled by the valve 38 and the manual lever 39. in the usual well known manner.

The passage of the fuel hydrocarbon from its source of supply is regulated bv a valve mechanism shown in section at Fig. 1 and also at Fig. 5. Conduits 40 and 41 supply.

,the fuel to the valve housing 42 as indicated the conduit 40 being intended to convey the gasolene or light hydrocarbon while the conduit 41 is intended to convey the heavier or main fuel supply.

Within the valve housing a tapered turning plug 43 is mounted controlled by a manual lever 44. This turning plug 43 is provided with a circumferential groove 45 extending somewhat more than one-half way around the valve and in position to communicate with the conduits 40 and 41 according to its position and also to communicate with the passage 46 leading to the filter 47 which in turn communicates with the annular chamber 48 which is open to the charnber-\12. It will be apparent, therefore, that as the valve 43 is rocked `from the position marked .Gasolene to the position marked Kerosene at Fig. 5 the groove 45 will interrupt communication there established between the passage 40 and 46 and will establish communicationbetween the passages 41 nearest y and 46 thereby cutting od" the supply of gasolene from the fuel chamber 12 and supplying in its stead the heavier hydrocarbon. At starting. however, it is desirable to supply the light hydrocarbon direct to the mixing chamber 36. such action being known as flushing. For this purpose the valve 43 is provided with a groove 49 extending longitudinally thereof and in positon to establish communication between the passage 40 and the passage 50, shown at Fig. 1 which said passage 50 is in communication with the passage 51 leading directly to the mixing chamber. When, therefore, the valve 43 t5 is rocked to the position shown as Flush at Fig. 5 the groove 49 is in communication with the passages 40 and 50 so that the gasolene passes directly from the passage 40 to the mixing chamber without passing 4 through the atomizing valve. As shown at Fig, 1 a passage 51 is disclosed. lt will be noted especially from Fig. 4 that the top portion or mixing chamber of this atomizer is capable of being turned to any one of four positions byreason of the fact that the screws 52 by which said mixing chamber is secured tothe body of the atomizer are equally spaced. rlhis turning of the mixing chamber permits the device to discharge the mixture of fuel and air to any quarter dev sired. The passages 51 are therefore provided so that when the mixing vchamber is turned to any one of its four positions one of such passages will always register with the passage 50 for the purpose of flushing.

Many mechanical features common in such devices the functions of which are perfectly apparent from the drawings have not been specifically mentioned or described, as for instance the butter-fly valve 52 in the hot air passage controlled by the manual lever 53, the latch 54 for .maintaining the knurled head` 25 in position, the iloat 55, lever 56 and needle valve 57 for controlling the passage of the fuel from the annular chamber 48 to the chamber 12 and various common mechanical expedients shown in conjunction with these and other elements of the draw- 1 ings, the utility and functions of which will 50 be readily understood without encumbering the record with a description of the same.

ln operation to start the motor the manual lever 44 is {irst thrown to the position shown as Flush at Figs. 2 and 5 whereby the from the source of supply to the mixing chamber to flush the same. From this position the manual lever is thrown to the position marked Gasolene in the figures mentioned whereby the lighter hydrocarbons still pass through the various intermediate assages and outwardly through the atomizing valve 27l in engagement with the air which passes through the openings 36A and '45435. After the motor is 4started. on this lighter hydrocarbons are admitted directly lighter hydrocarbon the heated gases from this, source or to be sure any other source which is convenient is introduced through the passages 14 to heat the film of fuel in the space 11. The manual lever is now thrown to the position marked Kerosene whereby the heavier oils are supplied and being heated as above pass upwardly through the atomizing valve and are taken up by the air as before mentioned.

l claim:

1. In a carbureter, a valve housing embodying a valve seat; a valve positioned to engage with the seat and having radial passages extending therethrough, said radial 8o passages communicating also with air passages formed in the valve adjacent its periphery.

2. ln a carbureter, a valve housing embodying a valve seat; a disk valve having radial passages extending substantially at right angles to its axis with reversely tapered openings extending through the valve and transecting some of said radial passages; others of said passages extending to the periphery of the valve.

3. ln a carbureter, a valve housing embodying a valve seat; a disk valve proportioned to engage with the seat and provided with radial passages extending from the center to the periphery and also provided upon its periphery with grooves transecting the extremities of some of said radial passages rand forming openings at all times between the valve and its seat.

4. In alcarbureter, a valve housing embodying a valve seat; a disk valve yieldingly mounted upon the seat and provided with radial passages, said valve also being provided with openings extending through such valve and transecting some of said radial pas-y sages; and with grooves formed in the under, side of the periphery of such valve and transeeting the extremities of others of said radial passages.

5. In a'carbureter, a' valve housing embodying a fuelchamber; a pipe extending from the fuel chamber and provided with a series of openings; a sleeve embracing the pipe and having an annular chamber communicating with some of said openings; thenumber of said openings in communication being regulated by the sleeve relative to the pipe; and a valve carried by the sleeve having radial passages in communication with the annular chamber.

6. In a carbureter, a valve housing em-` bodying a valve seat; a pipe extending upwardly through the -valve seat and in communication with the fuel supply, said pipe. being provided with a series of openings differently spaced from the bottom; a sleeve embracing said pipe and providedwith an annular chamber in communication with some of said openings, the number of said openings in communication with the chamber being regulated by the vertical position of the sleeve; anda valve'carried by the sleeve proportioned to interact with the valve seat and provided with radial passages in communication at their inner ends with the annular chamber and terminating at their outer ends at the periphery of the valve.

7. In a carbureter, a valve housing embodving a valve seat; a fuel suply pipe extending upwardl)7 through 'the valve seat and provided with a series of openings differently spaced from` the bottom of the pipe; a sleeve embracing and sliding upon the pipe and provided with an annular chamber in communication with a number of said openings controlled by the vertical position of the` sleeve relative to the pipe; a valve carried by the sleeve and proportioned to interact with the valve seat and provided with radial passages in communication with the annular chamber; `some'of said` passages extending entirely to the periphery of the valve, said valve beingalso provided with openings therethrough transecting others of said radial passages.

8. In a carbureter, a valve housing provided `,with a valve seat; a fuel supply pipe extending upwardly through the valve seat and provided with aseries of openings differently spaced from the bottom; a sleeve embracing the pipe and provided with an annular chamber in communication with some of said openings, the number being controlled by the vertical position of the sleeve; a valve carried by the sleeve and proportioned to interact with the valve seat and provided with a plurality of radial passages communicating at their inner ends with the annular`` chamber, some of said passages extending to the periphery of the valve adjacent to grooves formed in such periphery, and others of said passages terminating at openings formed through said valve; a spring exerting yielding tension upon the valve to hold it normally to seat; and manual means for varying the tension of the spring.

In a carbureter, a valve housing provided with a plurality of fuel ducts; a

"valve mounted to rotate in said housing and provided with a circumferential groove extending part way around said valve and with a longitudinal groove communicating with said peripheral groove, said grooves being arranged so that when the valve is in one position one of the fuel inlets is in communication with one outlet, when in a differentv position the same fuel inlet is in communication with a different outlet and when in a third position the second fuel inlet is in communication with the last mentioned outlet. l

10. In a carbureter, a valve seat; a disk valve coperating with the seat and having an upwardly extending axial sleeve; a telescoping tube embracing the sleeve; a spring embraced by the telescoping tube and bearing upon the sleeve; and a manual lever adapted to control one of the telescoping sections.

1n communication with passages extending through the supplypipe above the valve; and radial passages formed in the valve communicating with the annular chamber.

In testimony whereof I affix my signature in presence of two witnesses.

ELDEN P. LAMB. Witnesses:

THOMAS F. GUsHnn, JOHN BIRD. 

